Patents by Inventor Doru Calin

Doru Calin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10742541
    Abstract: In an example embodiment, a device includes a memory having computer-readable instruction stored therein and a processor. The processor is configured to execute the computer-readable instructions to identify a plurality of communication paths for data transmission between the device and a network gateway, a first one of the plurality of communication paths being associated with a first radio access technology and a second one of the plurality of communication paths being associated with a second radio access technology, and establish a data transmission session between the device and the network gateway simultaneously over at least the first one and the second one of the plurality of communication paths.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: August 11, 2020
    Assignee: Nokia of America Corporation
    Inventors: Bong Ho Kim, Doru Calin, Jonathan Ling, Harish Viswanathan
  • Patent number: 10560940
    Abstract: One or more processors in a communication system allocate a selected connectivity path from a plurality of connectivity paths supported by a plurality of access technologies. The selected connectivity path is allocated to a service flow between a communication device and a core network. One or more available access channels are assigned to the service flow for the selected connectivity path. Network conditions and performance of the service flow are monitored on the one or more available access channels. The selected connectivity path is modified based on the network conditions and the performance of the service flow seamlessly to the existing applications or service flows. In some cases, criteria for modifying the selected connectivity path are modified for a predetermined time interval in response to modifying the selected connectivity path, e.g.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: February 11, 2020
    Assignee: Nokia Solutions and Networks Oy
    Inventors: Doru Calin, Bongho Kim
  • Publication number: 20190150150
    Abstract: One or more processors in a communication system allocate a selected connectivity path from a plurality of connectivity paths supported by a plurality of access technologies. The selected connectivity path is allocated to a service flow between a communication device and a core network. One or more available access channels are assigned to the service flow for the selected connectivity path. Network conditions and performance of the service flow are monitored on the one or more available access channels. The selected connectivity path is modified based on the network conditions and the performance of the service flow seamlessly to the existing applications or service flows. In some cases, criteria for modifying the selected connectivity path are modified for a predetermined time interval in response to modifying the selected connectivity path, e.g.
    Type: Application
    Filed: November 10, 2017
    Publication date: May 16, 2019
    Inventors: Doru Calin, Bongho Kim
  • Patent number: 10212631
    Abstract: A radio access network element includes a cellular interface and a processor. The cellular interface is configured to communicate with the user equipment via a cellular link. The processor is configured execute computer readable instructions to cause the radio access network element to: transmit a plurality of probe packets to the user equipment via an IP tunnel between the radio access network element and the user equipment through a wireless local area network access point; receive a probe packet response from the user equipment, the probe packet response being indicative of a connection quality of the IP tunnel between the radio access network element and the user equipment; and determine whether to switch from a first traffic routing mode to a second traffic routing mode based on the probe packet response from the user equipment.
    Type: Grant
    Filed: November 11, 2015
    Date of Patent: February 19, 2019
    Assignee: Nokia of America Corporation
    Inventors: Jonathan Ling, David Lopez-Perez, Bong Ho Kim, Doru Calin, Vasudevan Subramanian
  • Patent number: 10080229
    Abstract: The present disclosure generally discloses a hybrid wireless communication system configured to support wireless broadband connectivity for a geographic region including a set of wireless network access devices configured to support wireless communications by a set of communication gateways disposed at locations within the geographic region. The hybrid wireless communication system may be configured to operate across a set of multiple radio spectrum bands associated with a set of multiple carrier frequencies, respectively. The hybrid wireless communication system may be configured to jointly determine assignment of the locations (and, thus, the associated communication gateways) to the multiple carrier frequencies of the multiple radio spectrum bands and to configure the wireless network access devices to support the jointly determined assignment of the locations to the multiple carrier frequencies of the multiple radio spectrum bands.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: September 18, 2018
    Assignee: Nokia of America Corporation
    Inventors: Doru Calin, Aliye O. Kaya, Harish Viswanathan
  • Patent number: 10028167
    Abstract: A content distribution network including a wireless network segment and an IP wide area network segment includes a virtualized Software Defined Networking (SDN) appliance for optimizing end-to-end quality-of-service (QoS) in the network. The SDN appliance is configured to identify and monitor traffic flows associated with respective content items, obtain end-to-end intelligence data associated with the traffic flow, the end-to-end intelligence data including quality-of-service (QoS) parameters associated with the traffic flow in the wireless network segment and the IP wide area network segment; and dynamically control the traffic flow in one or both of the wireless network segment and the IP wide area network segment based on the end-to-end intelligence data.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: July 17, 2018
    Assignee: Alcatel-Lucent USA Inc.
    Inventors: Doru Calin, Hyunwoo Nam
  • Patent number: 9936520
    Abstract: A method for controlling a plurality of Wi-Fi clients and a plurality of Wi-Fi Access Points (APs) is provided. The method receives M1 and M2 for the Wi-Fi clients and M3 for the Wi-Fi APs. For a respective Wi-Fi client configured to operate on a channel, M1 is a Received Signal Strength Indication (RSSI) from a serving Wi-Fi AP and M2 is an aggregated level of interference from other than the serving Wi-Fi AP. For a respective Wi-Fi AP, M3 is a level of interference received from other of the Wi-Fi APs operating on the channel. The method generates distributions of M1, M2 and M3, sets a Clear Channel Assessment-Energy Detection (CCA-ED) threshold and a Clear Channel Assessment-Carrier Sense (CCA-CS) threshold based on the distributions of M1, M2 and M3, and transmits the thresholds to the Wi-Fi clients and Wi-Fi APs.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: April 3, 2018
    Assignee: Alcatel-Lucent USA Inc.
    Inventors: Doru Calin, Aliye Ozge Kaya
  • Publication number: 20180034726
    Abstract: In an example embodiment, a device includes a memory having computer-readable instruction stored therein and a processor. The processor is configured to execute the computer-readable instructions to identify a plurality of communication paths for data transmission between the device and a network gateway, a first one of the plurality of communication paths being associated with a first radio access technology and a second one of the plurality of communication paths being associated with a second radio access technology, and establish a data transmission session between the device and the network gateway simultaneously over at least the first one and the second one of the plurality of communication paths.
    Type: Application
    Filed: July 26, 2016
    Publication date: February 1, 2018
    Inventors: Bong Ho KIM, Doru CALIN, Jonathan LING, Harish VISWANATHAN
  • Patent number: 9866488
    Abstract: In one example embodiment, a network node includes a processor configured to receive one or more data packets from a transmitter and transmit at least one first-type confirmation message to the transmitter based on a threshold, the at least one first-type confirmation message including an acknowledgement that all but at least two bytes of data included in the one or more data packets are received from the transmitter. The processor is further configured to transmit at least one second-type confirmation message to the transmitter based on at least one of a size of a buffer at the network node available for receiving data packets and an acknowledgement from an end device acknowledging receipt of the one or more data packets, the at least one second message including an acknowledgement of one or more of the at least two bytes of data.
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: January 9, 2018
    Assignee: Alcatel-Lucent USA Inc.
    Inventors: Bongho Kim, Doru Calin
  • Publication number: 20170346724
    Abstract: A radio access network element includes at least one transceiver coupled to at least one processor. The at least one processor configured to execute computer readable instructions to: determine a first available throughput for a first path traversing a first wireless network; determine a second available throughput for a second path traversing a second wireless network; and establish, for at least one packet communication protocol connection, at least one of a first multipath packet flow via the first path and a second multipath packet flow via the second path based on (i) a throughput gap threshold value and (ii) a throughput gap parameter for the first and second paths, the throughput gap parameter indicative of a difference between the first available throughput and the second available throughput.
    Type: Application
    Filed: December 28, 2016
    Publication date: November 30, 2017
    Inventors: Doru CALIN, Hyunwoo NAM
  • Publication number: 20170303278
    Abstract: The present disclosure generally discloses a hybrid wireless communication system configured to support wireless broadband connectivity for a geographic region including a set of wireless network access devices configured to support wireless communications by a set of communication gateways disposed at locations within the geographic region. The hybrid wireless communication system may be configured to operate across a set of multiple radio spectrum bands associated with a set of multiple carrier frequencies, respectively. The hybrid wireless communication system may be configured to jointly determine assignment of the locations (and, thus, the associated communication gateways) to the multiple carrier frequencies of the multiple radio spectrum bands and to configure the wireless network access devices to support the jointly determined assignment of the locations to the multiple carrier frequencies of the multiple radio spectrum bands.
    Type: Application
    Filed: April 15, 2016
    Publication date: October 19, 2017
    Applicant: Alcatel-Lucent USA Inc.
    Inventors: Doru Calin, Aliye O. Kaya, Harish Viswanathan
  • Publication number: 20170279730
    Abstract: A buffer stores only packets in one or more high-priority traffic flows in a first portion. The size of the first portion is determined based on an estimated maximum volume of traffic in the at least one high-priority traffic flow. The buffer stores packets in either the one or more high-priority traffic flows or one or more low-priority traffic flows in a second portion. The buffer stores only packets in the one or more low-priority traffic flows in a third portion. A processor marks the packets in the first portion and the second portion with a high-priority color prior to transmission of the packets. The processor marks the packets in the third portion with a low-priority color prior to transmission of the packets.
    Type: Application
    Filed: March 25, 2016
    Publication date: September 28, 2017
    Inventors: Doru Calin, Bongho Kim, Bilgehan Erman, Francis Bourriaud
  • Patent number: 9681455
    Abstract: Example embodiments are directed to methods of reducing interference in a communication system. In at least one example embodiment, a method includes first determining, by a first transmitter having a multi-directional antenna configured to produce a plurality of beams, at least one interference level of at least one interfering beam of a plurality of beams of at least one transmitter in the communication system, second determining a transmitting beam pattern based on the interference level, the transmitting beam pattern indicating a sequence of illuminating the plurality of beams at corresponding time slots, third determining a fractional frequency reuse pattern based on the transmitting beam pattern, and transmitting data based on the transmitting beam pattern and the frequency reuse pattern.
    Type: Grant
    Filed: January 20, 2011
    Date of Patent: June 13, 2017
    Assignee: Alcatel Lucent
    Inventors: Kai Yang, Chan-Byoung Chae, Doru Calin, Denis Rouffet, Simon Yiu
  • Publication number: 20170142015
    Abstract: In one example embodiment, a network node includes a processor configured to receive one or more data packets from a transmitter and transmit at least one first-type confirmation message to the transmitter based on a threshold, the at least one first-type confirmation message including an acknowledgement that all but at least two bytes of data included in the one or more data packets are received from the transmitter. The processor is further configured to transmit at least one second-type confirmation message to the transmitter based on at least one of a size of a buffer at the network node available for receiving data packets and an acknowledgement from an end device acknowledging receipt of the one or more data packets, the at least one second message including an acknowledgement of one or more of the at least two bytes of data.
    Type: Application
    Filed: November 17, 2015
    Publication date: May 18, 2017
    Inventors: Bongho KIM, Doru CALIN
  • Publication number: 20170135009
    Abstract: A radio access network element includes a cellular interface and a processor. The cellular interface is configured to communicate with the user equipment via a cellular link. The processor is configured execute computer readable instructions to cause the radio access network element to: transmit a plurality of probe packets to the user equipment via an IP tunnel between the radio access network element and the user equipment through a wireless local area network access point; receive a probe packet response from the user equipment, the probe packet response being indicative of a connection quality of the IP tunnel between the radio access network element and the user equipment; and determine whether to switch from a first traffic routing mode to a second traffic routing mode based on the probe packet response from the user equipment.
    Type: Application
    Filed: November 11, 2015
    Publication date: May 11, 2017
    Inventors: Jonathan LING, David LOPEZ-PEREZ, Bong Ho KIM, Doru CALIN, Vasudevan SUBRAMANIAN
  • Patent number: 9590744
    Abstract: An example method of tactical communication is provided. The method includes receiving information indicating a tactical situation associated with a target area. The tactical situation is one of a missile in-flight, an eavesdropper, a signal jammer, and a transceiver located in a zone of interest. The method further includes performing a beamforming process including instructing transmission of a plurality of signaling beams from one or more transmitters toward the target area. The tactical situation may be associated with a foe and the plurality of signaling beams generate interference inhibiting communication with by the foe. The tactical situation may be associated with a friend and the plurality of signaling beams generate decodable signal for enhancing communication with the friend.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: March 7, 2017
    Assignee: Alcatel Lucent
    Inventors: Doru Calin, Aliye Ozge Kaya, Kai Yang, Simon Yiu
  • Publication number: 20160262162
    Abstract: A method for controlling a plurality of Wi-Fi clients and a plurality of Wi-Fi Access Points (APs) is provided. The method receives M1 and M2 for the Wi-Fi clients and M3 for the Wi-Fi APs. For a respective Wi-Fi client configured to operate on a channel, M1 is a Received Signal Strength Indication (RSSI) from a serving Wi-Fi AP and M2 is an aggregated level of interference from other than the serving Wi-Fi AP. For a respective Wi-Fi AP, M3 is a level of interference received from other of the Wi-Fi APs operating on the channel. The method generates distributions of M1, M2 and M3, sets a Clear Channel Assessment-Energy Detection (CCA-ED) threshold and a Clear Channel Assessment-Carrier Sense (CCA-CS) threshold based on the distributions of M1, M2 and M3, and transmits the thresholds to the Wi-Fi clients and Wi-Fi APs.
    Type: Application
    Filed: March 31, 2015
    Publication date: September 8, 2016
    Applicant: ALCATEL-LUCENT USA INC.
    Inventors: Doru Calin, Aliye Ozge Kaya
  • Publication number: 20160262044
    Abstract: A content distribution network including a wireless network segment and an IP wide area network segment includes a virtualized Software Defined Networking (SDN) appliance for optimizing end-to-end quality-of-service (QoS) in the network. The SDN appliance is configured to identify and monitor traffic flows associated with respective content items, obtain end-to-end intelligence data associated with the traffic flow, the end-to-end intelligence data including quality-of-service (QoS) parameters associated with the traffic flow in the wireless network segment and the IP wide area network segment; and dynamically control the traffic flow in one or both of the wireless network segment and the IP wide area network segment based on the end-to-end intelligence data.
    Type: Application
    Filed: February 9, 2016
    Publication date: September 8, 2016
    Applicant: Alcatel-Lucent USA Inc.
    Inventors: Doru Calin, Hyunwoo Nam
  • Patent number: 9408206
    Abstract: Method and apparatus for allocating resources to real-time traffic communication in an Orthogonal Frequency Division Multiple Access (OFDMA) based system are provided. An example method includes assigning, selecting, mapping and transmitting. One or more Voice Over Internet Protocol (VoIP) packets are assigned to a single bundled packet. A first modulation and coding scheme (MCS) of a set of MCSs is selected. The first MCS is the one MCS of the set of MCSs capable of mapping the bundled packet to a smallest possible amount of physical OFDMA resources while addressing one or more negative impacts of interference on a link associated with the real-time traffic communication. The bundled packet is mapped to the smallest possible amount of physical OFDMA resources based on the first MCS selected. The bundled packet is transmitted using the first MCS selected and over the smallest possible amount of physical OFDMA resources mapped.
    Type: Grant
    Filed: December 8, 2013
    Date of Patent: August 2, 2016
    Assignee: Alcatel Lucent
    Inventor: Doru Calin
  • Publication number: 20160192202
    Abstract: A method of small cell deployment is performed in response to an initialization request or a performance alarm. The method includes selecting an initial number (N) of small cell candidate locations of one or more feasible small cell locations for small cells on a three dimensional grid of nodes representation of an area of interest and determining, feasible M-sized small cell tuples having small cells that do not conflict with each other, wherein M has an initial value less than or equal to N. The method also computes at least one performance Key Performance Indicator (KPI) for a subset of the feasible M-sized small cell tuples, and searches for a first tuple of the subset of the feasible M-sized small cell tuples, the at least one performance KPI of the first tuple satisfying one or more constraints on the small cell deployment.
    Type: Application
    Filed: December 31, 2014
    Publication date: June 30, 2016
    Applicants: ALCATEL LUCENT, ALCATEL-LUCENT USA INC.
    Inventors: Doru Calin, Aliye Ozge Kaya, Denis Rouffet